How to move forward with my phyrexian deck

I looove phyrexian stuff and ive played a meh deck irl for a bit but with the new valko card ive been thinking about switching to him but idk if it'll work for what I want im really only going for b3 cause of my playgroup and I want all the preators this is my current deck https://moxfield.com/decks/65qVLh-XJUeFugJSQdBd9A and this is what ive been messing around with https://moxfield.com/decks/uaxP7zboMUKm3Kz3W6e70w so im looking for some input on if I should stick with omnath and change the deck a bit or move to valko and any good recommendations.